Rotary steam-joint.



J. NUTTALL. mmm STEAM JOINT. APPLICATION FILED 00T. 2?, 1909. 951,771Patented Mar. 8, 1910.

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J. NUTTALL. ROTARY STEAM JOINT. APPLIGATION FILED 0012.23, 1909.

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` WITNESS mveNToR Zivi@ ATTQBYNEYS.

JAMES NUTTALL, OF BURY, ENGLAND.

ROTARY STEAM-JOINT.

Specification of Letters '.Patent.

Patented Mar. 8, 1910.

Application :tiled October 23, 1909.; Serial No. 524,281.

To all whom it 'may concern:

23e it known that l, Jamas Nn'r'rALL, a Subject et the King ot' GreatBritain and Ireland, of Park View, Valmersley Road, Bury, in the countyof Lancaster,England, have invented new and useful Improved ltotarySteam-Joints, of which the following is a specification.

The object ot' my invention is to provide improved means for use inpassing steam, or other tiuids, into and .troni rotating cylinders andthe iihe, my invention relating to the class ot pparatus wherein ahollow stein, aiiixed to the end or trunnion of the cylinder, or thelike, has a hollow h'cad perforated for the inlet and outlet of steam,or other fluid, and capable of rotating in xed bearing parts carrying,or being connected with the inlet pipe and the outlet pipe. Y

I make the device as hereinafter described so that it has no packingglands or internal joints, so that inlet steam or iiuid, cannot escapeinto the outlet chamber and pipe and so that ii any leakage. shouldoccur, the steam or tluid will escape outside the device and the leakagewill at once be deler-tml and can be remedied with great ease evendnl-ing the running oiE the apparatus, l may apply my improredarrangement so that the inlet and outlet are both at the same end of thecylinder, or the like, or 'l may apply it at each end of the cylinder,or the liliei, making thev inici tor steani, or other ilinid, throughone olf the bearing parts and the rhollow head at one end and the outlettl'irongh one ot the bearing parts and the hollow head at. the otherend.

According to my invention I make the hollow head ot such shape that itcan be heid androtate between, two fixed and separate external bearingparts which can be drawn toward each other so as to give a tight bearingagainst the said hollow head, one ot the said bearing parts carrying, orbeing connected with, the inlet pipe and the other part carrying', orbeingl connected the outlet pipe, as hereinafter fully i p`iined. Iconnect the members of each the pairs of fixed bearing parts so that iecan be brought toward each other to 'f a tight bearing against 'thehollow head,

l by 'means of bolts carrying springs for pressing the bearing partsinto contactwith the hollow head.

I will describe constructions in accordance with my invention withreference to the accompanying drawings and for the purposes ofdescription I will presume that the fluid is steam and that it is to'bcpassed into, and y ,the water of' condensation discharged from acylinder.

Figure l is a section of one end of a cylinder with a device inaccordance with my ilivention applied; Fig. Q is a plan oi the device;Fig. 8 is a transverse section on the line A, li, Fig. i; and Fig. 4represents, in section, the two ends ot a cylinder, provided with amodification in accordance with my invention.

Referring first to Figs. 1,2 and 3, I aHix to Vthe cylinder-end, or triunion, 1, a hollow stem 2, terminating in a hol ow head 3, which canrotate between two fixed bearing parts 4 and to one of which (thatmarked 4) the. steam-inlet pipe (3A is lixed and to the other of which(that inarked 5) the. outlet pipe 7, is fixed, "the two'bearing parts 4and 5 einbracing and iitting against opposite portions` 'of the saidhead I have .shown the said head 3 as being of spherical form and thebearings 4 and 5 as being concave to fit against opposite portionsthereof although the head 3 and bearing part-s 4 and 5 may be of othershape as hereinafter explained. The said bearing parts 4 and 5 may beconnected together for instance as shown in Fig. 2 by long bolts 8,passing through lugs on the said parts and with springs 9, arranged soas to give a Somewhat flexible connection and a good bearing by pressingat one end on the lugs on the part 4 and 'at the other end on nuts onthe bolts 8. A pipe.l0 leads from the interior of the cylinder andpasses through the cylinder end, or trunnion,

1, and the spherical head 3, so as to communi cate with Athe pipe 7fixed to the outer of the aforesaid bearing parts 5, the inner one (4)of Which is formed with a. chamber 11 periorated at 12, so as to beputin communication With the spherical head 3, by perforations 13, therein.The pipe 6 communicates with this chamber 11. If the pipe 10, leadinfrom the cylinder may rotate with the cy inder the outer end of the saidpipe can be fixed to the spherical head, as shown, but if the saidpipe-10, be a siphon pipe, or, for vother reason, is not to rotate withthe cylinder the outer end of the said pipe is connected to the fixedouter bearing part 5 against which the spherical head 3 bears. The steamcan be admitted by the pipe 6, to the chamber 11, in the 'nner bearingpart 4, `and pass through the perforations 12 and 13, into the sphericalhead 3,- and throughthe stem 2 into the cylinder' and water of'condensation pass out by the pi e, 7 the said water passing from thecylin er by the pipe 10, which passes through the stem 2, and sphericalhead 3, or, if desired, the passage of the steam and water ofcondensation may be in' the reverse directions, andv t-he outlet of thelifting arrangement inside the cylinder be reversed.

The aforesaid bearing parts 4 and 5 in which the spherical head 3.rotates can be fixed to any convenient stationary part and will give asufficiently tight bearingon the said head, 3, the inner bearing part 4extending over the said head 3, sufficiently to cover the perforationsin the said head 3, so

that steam does not pass therethrough except when the pcrforations 13,are vin communica- ,tion with the perforation 12, in the aforesaidchamber 11. In the drawings I have dliown the said bearing parts 4 and 5as be- ,iiig supported 'by steam and exhaust pipes Qbgjnnected withinaiii steam supply and exhaust pipes, and although the said bearingparts are shown as being connected by bolts and nuts with theintervention of spriingsT these springs are not essential. By making aslot instead ol. the perforations 12, steam,

or the like, will constantly pass into the hollow head if theperforations 13 be arranged close to each other. Y

Fig. 4sliows a construction wherein instead of the bearing parts beingperforated so that the steam or other iiuid enters the hollowhead by oneof them, and leaves by the' other of thcni at the saine end of thecylinder hereinbcforc described, I provide a hollow stem and hollow headat each end of the cylinder, or the like, and I carry each hollow headbetween two bearing parts one of which is not perforated for the passageof l steam, or other fluid, the other hearing piece `at one end of thecylinder, or the like, being connected with the inlet pipe for steam orother Huid, and thc other bearing piece at the opposite end of thecylinder, or the like,

' being connected with the fiuid exit pipe. i

carrying,

cylinder throughthe pipe 10, led through the hollow trunnion 1 and stein2 and head 3,' and secured in the head 3, so that the, pipe10,`communicates with the pipe 7. The parts 4 and 5 may be connectedtogether, or held in position. in any suitable way, preferably by meansof lugs, lon bolts, and springs as hereinbefore describe Instead of thehead 3, on the stem 2, being spherical it can be made of any othersuitable shape, such, for example, as cylindrical with curved, orstraight conical ends, or concave ends, and the bearing parts 4 and 5may be made of corresponding shape to lit these ends, or one bearingpart mayv be made concave to fit against a coned,`or convex part of thehead 3, and the other bearing part be inade convex to titl against aninternal cone, or concave part of the head 3, or the bearing parts 4 and5, and the parts of the head against which they bear may be inade flat.These variations in shape will be readily understood without specialillustration as the operation will he practically the saine as in thearrangements illustrated.

I claim as my invention: 1. The combination with rotatable cylinders orthe like, of a hollow steni aflixed with two separate and external iixedbear-,

ing parts therefor,- one carrying or being Yconnected with the inletpipe and the other I or being connected with the outlet ai ie and thesaid two bearing arts being l l v a n provided with means by which theycan be brought toward each other to give a tight be-ii-ing against thehollow head, .substantially as hereinbefore described.

2. The combination with rotatable cylinders, 'or the like, of a hollowstein affixed to the cylinder end, or trunnion, and having a hollow headperforated for the inlet and outlet of steam, or other iiuid,togetherwith two separate andexternal iixed bearing parts thereforconnected with the inlet and outlet respectively, the said bearing partsbeing connected together by bolts carrying springs for pressing thebea-ring parte into contact with the hollow head, substantially ashereinbefore described. v

3. The combination with the respective ends, or trunnions, of rotatablecylinders or the like, of a hollow stein having a hollow head, togetherwith separate and external outiet, substantially as hereinbefore dexedbearing parte therefor provided. with scribed.

means for adjusting said parts toward each In testimonywnereof I havesigned my other to give u tight bearing against the 1 name to thisspecification in the presence of hollow head, one of such oem-ing partsat twosubscribing Witnesses.

one end of the cylinder, or the like, being l JAMES NUTTALL. connectedwith the inlet, and one of diei bearing parte at the other end of the:cyiinder, or the iike5 being' connected with the Witnesses WLLIAlsIHENRY, ALFRED NUTTALL.

